Drainage tray for surgical tables



June 27, 1967 N Wm 3,328,024

DRAINAGE TRAY FOR SURGICAL TABLES Filed Feb. 21, 1964 2 Sheets-Sheet 1 33 t 27 26 f l2 INVENTOR.

2 I ROBERT N. WEIL BY am [14%. 4

ATTORNEY June 27, 1967 R. N WEIL DRAINAGE TRAY FOR SURGICAL TABLES 2Sheets-Sheet 2 Filed Feb. 21, 1964 22; 264' 24 FIG. 3

H|lllllll llllllll|m INVENTOR ROBERT N. WEIL cu- /M ATTORNEY FIG.4

United States Patent vania Filed Feb. 21, 1964, Ser. No. 346,440 12Claims. (Cl. 269327) This invention relates to surgical apparatus and,more particularly, to surgical trays and trays in combination withsurgical tables.

Surgical trays made according to previous designs were complex inconstruction and sometimes inconvenient to handle. These trays wereoften designed in such a manner that it was diflicult to sterilize themand, in some instances, they were difficult and inconvenient to use.

The tray according to the present invention is of a simple, clean cutdesign which becomes a component part of a surgical table. It is made inone piece and can be easily removed for sterilization. It is mounted onthe table in a unique manner so that it can be moved under the tablecompletely out of the way and when it is moved into working position, itis under the drip edge of the table and extends the full width acrossthe table.

The tray is symmetrical in design and the handle is located in such aposition that the entire table and tray can be removed, replaced, andoperated with one hand. A Teflon coating is provided on the sliding wayswhich provides no metal to metal contact.

It is, accordingly, an object of the present invention to provide animproved drain tray for a surgical table.

Another object of the invention is to provide an improved drain tray incombination with a surgical table.

A further object of the invention is to provide a drain tray andmounting arrangement which is simple in construction, economical tomanufacture, and simple and efiicient to use.

With the above and other objects in view, the present invention consistsof the combination and arrangement of parts hereinafter more fullydescribed, illustrated in the accompanying drawing and more particularlypointed out in the appended claims, it being understood that changes maybe made in the form, size, proportions, and minor details ofconstruction without departing from the spirit or sacrificing any of theadvantages of the invention.

In the drawings:

FIG. 1 is an isometric partial view of a drain tray supported on a tableaccording to the invention;

FIG. 2 is a front view of the tray and a part of the support taken online 2-2 of FIG. 1;

FIG. 3 is a bottom view of the tray taken on line 3--3 of FIG. 2;

FIG. 4 is a side view of the tray taken on line 4-4 of FIG. 1.

Now with more particular reference to the drawing wherein like numeralsrefer to the same parts throughout the drawings, a tray 11 is supportedon a table 10. The table may be of any of the conventional types ofsurgical tables. It has a top surface 15 which terminates in an endwhich overlies a vertical end portion 37 and therefore provides a dripedge which overlies the inner end of the tray when the tray is inoperative position.

The table 10 has lugs 17 for supporting knee stirrups of a conventionaltype and lateral brackets are provided which support upper fixed tracks19 which may be attached to brackets 39 by means of screws, welding, orother suitable means.

Lower tracks 19 are slidably supported on a tray frame 40. The trayframe 40 may be locked in position with the tracks 19 in alignment Withthe tracks 19' by 3,328,024 Patented June 27, 1967 means of a lockinghandle 41 or it may he slid to the position 40 as shown in phantom linesin FIG. 1.

The tracks 19 and 19 are U-shaped in cross section and the space betweenthe legs of the U-shaped tracks are in alignment as shown in FIG. 1 whenthe tracks are in the outermost position so that the tray slides 20 canslide up and down from the bottom to the top of the slides. Both theoutside of the slides 20 and the inside of the tracks 19 and 19' arecoated with Teflon or some other similar friction free material so thatthere will not be a metal to metal contact between the tray and thetable, thereby preventing static electrical conduction and, also,providing a low friction sliding surface.

The tray itself is generally rectangular in shape and has two parallelsides. The screen 14 has laterally extending flanged edges 42 whichoverlie and rest on the edges of the tray so that the screen can beeasily removed. The tray is deeper at the edge next to the table than itis at the outer edge; that is, the bottom is inclined downward andtoward the table as shown and the nipples 36 at each side of the traymay be connected to suitable hoses 12 so that the tray can be drainedrapidly and efficiently.

The tray has the slides 20 fixed to each side thereof by suitable screwsor the like. These slides are generally T-shaped with the intermediateportion 43 which is generally rectangular in cross section as shownwhich is supported to the table by means of a suitable T-bar portion 44.

The slides 20 are received in the U-shaped tracks 19 and 19' and thetray can be freely slid from top to bottom when the fasteningarrangement is released.

The tray has the handle 18 which may be rotated to release the rods 27and thereby release the tray. The handle may also be used as a means forsupporting the tray while it is being removed. Thus, the operator canmove the tray u and down with a single hand. The operator can hold thetray easily with one hand grasping handle 18 to put it in thesterilizer. The tray can also be moved to stored position under thetable. The tray has horizontal tracks 50 fixed to side members 40. Thesetracks receive slides 51 which are fixed to the sides of the table.Slides 43 and tracks 40 are constructed much like slides 43 and tracks40 of the vertical slide arrangement.

The locking means for holding the tray in vertical position is made upof spring loaded rods 27 which are urged outward by means of compressionsprings 26. These springs bear against the lugs 44 which are fixed tothe bottom of the tray. Links 28 are attached to the inner ends of therods 27 and are attached by means of pins 45 to the latch assembly 34 atpositions spaced from the center of rotation of the handle 18.

The springs 26 bear against Washers 25 which, in turn, bear against pin24. Thus, the rods 28 on the inner ends are received between the washer25 and the latch assembly 34. The entire latch assembly is fixed to thebottom of the tray by means of screws 29.

In operation, the operator will grasp the handle 18 and rotate it todraw the rods 27 inward and bring the ends 21 out of the holes 13 in thetracks. The tray can then he slid up or down on tracks 19. It can alsobe moved completely down so that slide 43 comes out of the bottom oftrack 19'. The tray is thus removed from the table.

To store the tray under the table, slide 43 is moved down into track 19and locked there by ends 21 in holes 13. Then handles 41 can be rotatedto loosen the threaded portion thereof and the tray carried under thetable by horizontal tracks 50 sliding on slides 51.

The foregoing specification sets forth the invention in its preferredpractical forms but it is understood that 3 the structure shown iscapable of modification within a range of equivalents without departingfrom the invention which is to be understood is broadly novel as iscommensurate with the appended claims.

The embodiments of the invention in which an exclusive property orprivilege is claimed are defined as follows:

1. In combination, a surgical table and a tray,

said table having a generally flat top surface adapted to support apatient during surgery, opposed, vertically extending tracks fixed tosaid table below said top and terminating below the top surface of saidtable,

said tray being generally rectangular in form and having opposed pairsof parallel sides forming a receptacle therebetween and having avertically extending slide attached to each said side of one of saidpairs of sides,

said slides being slidably received by said tracks,

and means for locking said slides in predetermined position on saidtracks,

whereby said tray may be selectively locked in a plurality ofpredetermined positions relative to said table top.

2. The combination recited in claim 1 wherein,

said tracks are generally U-shaped in cross section and said slidecomprises elongated members having generally fiat sides slidablyreceived in said U-shaped tracks.

3. The combination recited in claim 2 wherein,

said means for locking said slide comprises rods extending laterally ofsaid tray,

vertically spaced holes in said tracks,

said rods being selectively received in said holes.

4. The tray recited in claim 3 wherein,

compression springs means are provided on said rods urging said rodsinto said holes,

and handle means is connected to said rods for retracting them from saidholes.

5. The combination recited in claim 4 wherein said handle meanscomprises a rotatable handle member supported on the bottom of saidtray,

said rods being connected to said handle member at positions spaced fromthe center of rotation thereof.

6. The combination recited in claim 1 wherein,

said table top overlies one end of said tray.

7. The combination recited in claim 1 wherein,

said tray extends substantially from one side of said table to theother.

8. The combination recited in claim 4 wherein,

said sandle means is disposed on the lower side of said tray andapproximately in vertical alignment with the center of gravity thereof.

9. The combination recited in claim 1 wherein,

said tracks are divided into a top and a bottom part,

said bottom track having means to allow said tray to be slid off thelower end of said lower track whereby said tray may be removed,

track support means on said table slidably supporting bottom parts ofsaid tracks on said table,

locking means for locking said bottom parts of said tracks on said slidemeans on said table in alignment with said top parts,

said track support means being horizontally slidable with said traysupported thereon to a position wherein said tray is entirely under saidtable.

10. The combination recited in claim 9 wherein,

a screen is provided over said tray,

said screen having laterally extending flange members thereon overlyingand resting on the edges of said tray.

11. The combination recited in claim 10 wherein,

said tray has a drain member in the bottom at each side thereof adjacentthe rear edge.

12. In combination, a surgical table and a tray,

said table having a flat top,

opposed, vertically extending track members fixed to said table andterminating at their upper end below the top surface of said table,

said track members being in the form of channels opening toward eachother,

horizontal slide members fixed to the side of said table below saidvertically extending track members,

a horizontal track member slidably supported on said horizontallyextending slides,

second vertically extending track members fixed to said horizontal trackmembers and slidable therewith,

said second vertically extending track member being in the form of anopen channel slidable into vertical alignment with said first verticallyextending track members,

a tray,

said tray having vertically extending slides on the open sides thereofadapted to be received in said first and said second verticallyextending track members and slidable therein selectively to a positionwherein said tray isadjacent said table top or to a position Whereinsaid slide members on said tray are in said second vertically extendingtrack members,

said vertically extending slide members being slidable out of both saidfirst and said second vertically extending track members whereby saidtray may be removed from said table,

locking means on said tray for locking said vertically extending slidemembers in predetermined positions in said first and said secondvertically extending track members,

said locking means comprising laterally extending rods,

springs urging said rods outwardly into engagement with one of saidfirst or said second vertically extending track members,

a handle on the bottom of said tray,

said handle having actuating means attached thereto and spaced from thecenter of rotation thereof and connected to said rods,

means supported on said horizontally extending track members for lockingsaid horizontal track members selectively in position to hold said trayunder said table or adjacent the end of said table.

References Cited UNITED STATES PATENTS 472,826 4/1892 Rudrof 4135499,310 6/1893 Towle 4-135 818,821 4/1906 Feeley 4-434 987,189 3/1911Thorner 269-327 1,762,944 6/1930 Allison 269-327 2,347,886 5/ 1944Crismon 26969 FOREIGN PATENTS 37,751 9/ 1906 Switzerland.

HAROLD D. WHITEHEAD, Primary Examiner.

1. IN COMBINATION, A SURGICAL TABLE AND A TRAY, SAID TABLE HAVING A GENERALLY FLAT TOP SURFACE ADAPTED TO SUPPORT A PATIENT DURING SURGARY, OPPOSED, VERTICALLY EXTENDING TRACKS FIXED TO SAID TABLE BELOW SAID TOP AND TERMINATING BELOW THE TOP SURFACE OF SAID TABLE, SAID TRAY BEING GENERALLY RECTANGULAR IN FORM AND HAVING OPPOSED PAIRS OF PARALLEL SIDES FORMING A RECEPTABLE THEREBETWEEN AND HAVING A VERTICALLY EXTENDING SLIDE ATTACHED TO EACH SAID SIDE OF ONE OF SAID PAIRS OF SIDES, SAID SLIDES BEING SLIDABLY RECEIVED BY SAID TRACKS, AND MEANS FOR LOCKING SAID SLIDES IN PREDETERMINED POSITION ON SAID TRACKS, WHEREBY SAID TRAY MAY BE SELECTIVELY LOCKED IN A PLURALITY OF PREDETERMINED POSITIONS RELATIVE TO SAID TABLE TOP. 